Argentine ant

The Argentine ant (Linepithema humile), from humble beginnings in South America, is now invasive on every continent and has a place on the list of 100 of the World’s Worst Invasive Alien Species. Transported around the world via human activity, this omnivorous ant impacts upon native flora and fauna and has been incredibly successful in outcompeting and displacing native ants. A recent study indicates, however, that at least one species may be ready to make a stand against the onslaught of the Argentine ant.